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In recent years, the interest rate on home mortgages has declined to less than 6.0 percent. However, according to a study by the Federal Reserve Board, the rate charges on credit card debt is more than 14 percent. Listed below is the interest rate charged on a sample of 10 credit cards.
14.6 16.7 17.4 17.0 17.8 15.4 13.1 15.8 14.3 14.5
Is it reasonable to conclude the mean rate charged is greater than 14 percent? Use the 0.01 significance level.
What is your conclusion regarding null hypothesis?
Define the terms parameter and statistic. Be sure that the concepts of population and sample are included in your definitions.
Do the data indicate that the sleeping pill is effective at a 1% level of significance?
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Construct a 95% confidence interval on the population mean for the following sample data set:
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A financial analyst is interested in estimating the average amount of a foreign loan by U.S. banks. Construct the Stratum weights for proportional allocation
Use Gauss-Jordan method to determine solution to following system of equations?
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